Swift M10DB-MP Use And Care Manual page 13

Place the 2 alignment tools (1.5mm allen wrenches) into the condenser
on both sides as shown:
Turn the adjustment tools carefully and gently (both directions) to
manipulate the rings into correct alignment. Important: do not force
the adjustment wrenches. Avoid turning the adjustment all the
way to one side
Please note: when the condenser disc is in the BF or DF position, no
adjustments can be made
20X / 40X Phase (40X Phase only available): Remove the adjusting
tools and rotate the condenser disk to the 20/40 position. Place the 40X
objective into the optical path. Re-focus the CT and ensure that the
rings are superimposed. If not, perform adjustments as described
above.
Please note: As the magnification of the objective increases, the
number of concentric rings will also increase. To determine which ring
you are moving, turn the adjusters to elicit movement. Once you have
determined which ring represents your condenser annulus, align this to
the rings in your field of view to achieve the proper alignment pattern
(see figure G, above)
100X Phase: Remove the adjusting tools and rotate the condenser
disk to the 100 position. Place the 100X objective into the optical path.
Re-focus the CT and ensure that the rings are superimposed. If not,
perform adjustments once more as described above. The 100X phase
is the most difficult to align due to its small diameter rings and multiple
plan achromat lens system.
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